我目前仍在學習 Python 的基礎知識。我看到其他人將攝氏度轉換為華氏度，這就像 10 行。雖然我的代碼超過 40 行。我沒有完全理解'返回'的意義是什么，所以我選擇了一個簡單的項目來理解它。但是當我意識到我的代碼對于如此簡單的事情來說太長了。感覺我應該做很多困難的項目，因為我在簡單的事情上使用了很多行。對不起，我是新手，我很想通過做項目來學習。困難的初學者項目的任何建議都會有所幫助。謝謝！import timedegree_sign = u'\N{DEGREE SIGN}'def fahrenheit():    degree = int(input('\nHow many degrees is it currently in Fahrenheit?: '))    a = round((degree - 32) * 5/9)        return adef celsius():    degree = int(input('\nHow many dgrees is it currently in Celsius?: '))    a = round((degree * 9/5) + 32)        return aprint("Welcome to my first weather conversion!\n")weather = input('Do you want to convert to Fahrenheit or Celsius (c/f)? \n').lower()if weather == "c":    time.sleep(0.5)    print(f'It is currently {fahrenheit()}{degree_sign}C.')elif weather == "f":    time.sleep(0.5)    print(f'\nIt is currently {celsius()}{degree_sign}F.')else:    while True:        print("\nI'm sorry I don't understand.\n")        weather = input('Do you want to convert to Fahrenheit or Celsius (c/f)? \n').lower()        if weather != "c" and weather != "f":            continue        elif weather == "c":            time.sleep(0.5)            print(f'\nIt is currently {fahrenheit()}{degree_sign}C')            break        elif weather == "f":            time.sleep(0.5)            print(f'\nIt is currently {celsius()}{degree_sign}F.')            break